They are scared easily if they see you they’ll fly away. Hide behind a rock then bola the shoot in the body with a tranq arrow. Don’t leave it unprotected it will die to almost anything while it is knocked out.
Extremely difficult to tame. Best options are to bola it, and then use a longneck rifle with tranq darts. Otherwise trying to get it to fly into the side of a cliff and get stuff is the other option for a solo tame.